Citation:
Sifakis S, Papadopoulou E, Konstantinidou A, Giahnakis E, Fragouli Y, Karkavitsas N, Koumantakis E, Kalmanti M. Increased levels of human placental growth hormone in the amniotic fluid of pregnancies affected by Down syndrome. Growth Hormone & IGF Research. 2009;19(2):121-125.